Hi, Yes, when Alice takes the call off-hold the INVITE will have "sendrecv" in it.
On Wed, Sep 22, 2010 at 3:49 PM, Shanbhag, Somesh (NSN - IN/Bangalore) < somesh.shanb...@nsn.com> wrote: > Goutam, > > Normally the Step-II shall not happen. It could happen, if Bob's phone > doesn't want to have one way media or RTCP packets - in this case it can > make the media totally inactive. > May be to save some bandwidth :) but there will be SBC's midway of the call > which can detect the idle media and tear down the call. So, in my opinion > Step-II is not a good idea! > > Coming to the second question, if Alice is off-hold, then he has to reply > with sendrecv. Are you really getting sendonly when you go off-hold? If this > is true, the answer from Bob would be inactive. > (It could be recvonly as well) > > Regards, > Somesh > > -----Original Message----- > From: sip-implementors-boun...@lists.cs.columbia.edu [mailto: > sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of ext goutam > kumar > Sent: Wednesday, September 22, 2010 3:15 PM > To: sip-implementors@lists.cs.columbia.edu > Subject: [Sip-implementors] Call HOLD from both sides > > Hi, > > I'm trying to implement a VOIP call between two endpoints. I'm in a doubt. > > Say Alice and Bob are in a call. Now, > > STEP I > Alice puts Bob on hold. i.e. > > INVITE (RTP-sendonly) > Alice -------------------------------------> Bob > > 200 OK (RTP-recvonly) > <------------------------------------ > > ACK > -------------------------------------> > > > STEP II > After this Bob puts Alice on hold. i.e. > > INVITE(RTP-inactive) > Alice <-------------------------------------- Bob > > 200 OK (RTP-inactive) > ----------------------------------------> > > ACK > <---------------------------------------- > > ( If Alice has already put the call on hold, then is Step II possible?? ) > > After this sequence of signaling, say Alice takes the call off hold i.e. > > INVITTE(RTP-sendonly) > Alice -------------------------------------------> Bob > > 200 OK (RTP ?????) > <-------------------------------------------- > > My Question is:What should bob send as a reply now? > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > -- Luv n Laf g...@m _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
